A force of 20 n gives a ball an acceleration of 4.0 m/s3 on a lever frictionless surface. what is the mass of the ball?
F = ma, so
20 = 4m
m = 5 kg
To find the mass of the ball, we can use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration:
F = m * a
In this case, the force applied to the ball is 20 N, and its acceleration is 4.0 m/s^2.
So, we can rearrange the formula to solve for the mass (m):
m = F / a
Plugging in the values:
m = 20 N / 4.0 m/s^2
m = 5 kg
Therefore, the mass of the ball is 5 kg.